hi ladies, I'm 21 and I've been having unprotected sex with my boyfriend this past month . After I ovulated I started to feel nasuea , diarrhea , cramping and then at 12dpo I started spitting pink and brown discharge. The next day it was heavier with red and black blood . Then the next day it stopped and started back up again later on that day. After the bleeding stopped I took a pregnancy test bt it wa negative. I am still having nausea , diarrhea, tiredness and stuffy nose since I stopped my early period . Could I be pregnant ? Please help !